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Finding the Fourth Proportional to 98,934, 136,537.56 and 54,230.64

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Solution

The fourth proportional to 98,934, 136,537.56 and 54,230.64 is: 74,843.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,934 : 136,537.56 = 54,230.64 : x
  2. Step 2: Convert to fraction form
    98,934/136,537.56 = 54,230.64/x
  3. Step 3: Cross multiply
    98,934x = 136,537.56 × 54,230.64
  4. Step 4: Simplify right side
    98,934x = 7,404,519,262.84
  5. Step 5: Solve for x
    x = 7,404,519,262.84/98,934
  6. Step 6: Final answer
    x = 74,843.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.